10 Aug, 2010
40 commits
-
In __rwsem_do_wake(), we can skip the active count check unless we come
there from up_xxxx(). Also when checking the active count, it is not
actually necessary to increment it; this allows us to get rid of the read
side undo code and simplify the calculation of the final rwsem count
adjustment once we've counted the reader threads to wake.The basic observation is the following. When there are waiter threads on
a rwsem and the spinlock is held, other threads can only increment the
active count by trying to grab the rwsem in down_xxxx(). However
down_xxxx() will notice there are waiter threads and take the down_failed
path, blocking to acquire the spinlock on the way there. Therefore, a
thread observing an active count of zero with waiters queued and the
spinlock held, is protected against other threads acquiring the rwsem
until it wakes the last waiter or releases the spinlock.Signed-off-by: Michel Lespinasse
Acked-by: David Howells
Cc: Mike Waychison
Cc: Suleiman Souhlal
Cc: Ying Han
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: Peter Zijlstra
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is in preparation for later changes in the series.
In __rwsem_do_wake(), the first queued waiter is checked first in order to
determine whether it's a writer or a reader. The code paths diverge at
this point. The code that checks and increments the rwsem active count is
duplicated on both sides - the point is that later changes in the series
will be able to independently modify both sides.Signed-off-by: Michel Lespinasse
Acked-by: David Howells
Cc: Mike Waychison
Cc: Suleiman Souhlal
Cc: Ying Han
Cc: Ingo Molnar
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: Peter Zijlstra
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allow device probing to recognise the Fintek F71808E.
Sysfs interface:
* Fan/pwm control is the same as for F71889FG
* Temperature and voltage sensor handling is largely the same as for
the F71889FG
- Has one temperature sensor less (doesn't have temp3)
- Misses one voltage sensor (doesn't have V6, thus in6_input refers to
what in7_input refers for F71889FG)For the purpose of the sysfs interface fxxxx_in_temp_attr[] is split up
such that it can largely be reused.Signed-off-by: Giel van Schijndel
Cc: Jean Delvare
Cc: Hans de Goede
Cc: Jonathan Cameron
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
register_hotcpu_notifier() is designed to make these ifdefs unnecessary.
Cc: Chen Gong
Cc: Rudolf Marek
Cc: Huaxu Wan
Cc: Jean Delvare
Cc: Guenter Roeck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update coretemp supported CPU TjMax lists and some cleanup work.
Signed-off-by: Chen Gong
Cc: Rudolf Marek
Cc: Huaxu Wan
Cc: Jean Delvare
Cc: Guenter Roeck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If one coretemp device can't be added, it should allow subsequent adding
operation because every new-added device will create a new sysfs group,
not an additional sensor sys entry.Signed-off-by: Chen Gong
Cc: Rudolf Marek
Cc: Huaxu Wan
Cc: Jean Delvare
Cc: Guenter Roeck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix two errors in hotplug. One is for hotplug notifier. The other is
unnecessary driver unregister. Because even none of online cpus supports
coretemp, we can't assume new onlined cpu doesn't support it either. If
related driver is unregistered there we have no chance to use coretemp
from then on.Signed-off-by: Chen Gong
Cc: Rudolf Marek
Cc: Huaxu Wan
Cc: Jean Delvare
Cc: Guenter Roeck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Guenter Roeck
Cc: Jean Delvare
Cc: Randy Dunlap
Cc: Hans de Goede
Cc: Mark Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This driver adds support for the monitoring features of the Summit
Microelectronics SMM665 Six-Channel Active DC Output Controller/Monitor.Signed-off-by: Guenter Roeck
Acked-by: Jonathan Cameron
Cc: Jean Delvare
Cc: Hans de Goede
Cc: Mark Brown
Cc: Samuel Ortiz
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This driver will report the heading values in degrees to the sysfs
interface. The values returned are headings . e.g. 245.6Alan: Cleanups requested now all folded in and a sysfs description to keep
Andrew happy. The sysfs description now resembles hwmon.Signed-off-by: Kalhan Trisal
Reviewed-by: Jean Delvare
Signed-off-by: Alan Cox
Cc: Jonathan Cameron
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add Lenovo Thinkpad T400. I have done the testing on my laptop. The
hdaps module detects the device and the hdapsd daemon is able to [un]park
the disk.Signed-off-by: Ritesh Raj Sarraf
Cc: Frank Seidel
Cc: Dmitry Torokhov
Cc: Jean Delvare
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
These are caused by checkpatch incorrectly parsing its internal
representation of a statement block for struct's (or anything else that is
a statement block encapsulated in {}'s that also ends with a ';'). Fix
this by properly parsing a statement block.An example:
+struct dummy_type dummy = {
+ .foo = "baz",
+};
+EXPORT_SYMBOL_GPL(dummy);
+
+static int dummy_func(void)
+{
+ return -EDUMMYCODE;
+}
+EXPORT_SYMBOL_GPL(dummy_func);WARNING: EXPORT_SYMBOL(foo); should immediately \
follow its function/variable
#19: FILE: dummy.c:4:
+EXPORT_SYMBOL_GPL(dummy);The above warning is issued when it should not be.
Signed-off-by: Patrick Pannuto
Cc: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
As explained in Documentation/timers/timers-howto.txt, msleep's of < 20ms
may sleep for as long as 20ms. Caller's of msleep(1) or msleep(2), etc
are likely not to expect this quirky behavior - warn them.Signed-off-by: Patrick Pannuto
Cc: Thomas Gleixner
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When possible, sleeping is (usually) better than delaying; however, don't
bother callers of udelay < 10us, as those cases are generally not worth
the switch to usleep[akpm@linux-foundation.org: fix mismatched parentheses]
Signed-off-by: Patrick Pannuto
Cc: Thomas Gleixner
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add new logging functions netdev_ and netif_.
Don't complain if the only thing on a line is a quoted string.Signed-off-by: Joe Perches
Cc: Andy Whitcroft
Cc: Wolfram Sang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make error message say 'ERROR: do not initialise globals to 0 or NULL'
rather than 'ERROR: do not initialise externals to 0 or NULL'. Makes more
sense in the context since there is an extern keyword in C and that is a
global declaration within the scope of the current file.Signed-off-by: Joe Eloff
Cc: Andy Whitcroft
Cc: Wolfram Sang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I've got a false positive when spaces are present at the beginning of a
line.So I add this check, obviously excluding to check the lines in the middle of
comments.For instance this code passes the checkpatch test:
+struct davinci_mcbsp_data {
+ unsigned int fmt;
+ int clk_div;
+};
+
+static struct davinci_mcbsp_data mcbsp_data;Where, before the string "int clk_div", I have 4 spaces (\040
ascii character).With v2.6.34 scripts/checkpatch.pl script I get:
scripts/checkpatch.pl 0001-ASoC-DaVinci-Added-support-for-stereo-I2S.patch
total: 0 errors, 0 warnings, 201 lines checked
0001-ASoC-DaVinci-Added-support-for-stereo-I2S.patch has no obvious style
problems and is ready for submission.That is not correct. Instead with the proposed patch I get:
scripts/checkpatch.pl 0001-ASoC-DaVinci-Added-support-for-stereo-I2S.patch
WARNING: please, no space for starting a line,
excluding comments
#63: FILE: sound/soc/davinci/davinci-i2s.c:165:
+ int clk_div;$WARNING: please, no space for starting a line,
excluding comments
#95: FILE: sound/soc/davinci/davinci-i2s.c:406:
+ return 0;$total: 0 errors, 2 warnings, 201 lines checked
That is correct.
Signed-off-by: Raffaele Recalcati
Cc: Wolfram Sang
Cc: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change the check suggesting replacement of asm-includes with
linux-includes. Exceptions to this rule are easier to extend now. Add
memory.h because ARM has a custom one.Signed-off-by: Wolfram Sang
Cc: Russell King
Cc: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The error may happen at any iteration of the for loop, this patch properly
unregisters already registed edd_devices in error path.[akpm@linux-foundation.org: remove unneeded NULL test]
Signed-off-by: Axel Lin
Cc: Stephen Hemminger
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Getting and putting arrays of pointers with flex arrays is a PITA. You
have to remember to pass &ptr to the _put and you have to do weird and
wacky casting to get the ptr back from the _get. Add two functions
flex_array_get_ptr() and flex_array_put_ptr() to handle all of the magic.[akpm@linux-foundation.org: simplification suggested by Joe]
Signed-off-by: Eric Paris
Cc: David Rientjes
Cc: Dave Hansen
Cc: Joe Perches
Cc: James Morris
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The strict_strtoul() and strict_strtoull() functions used strlen() to
check argument's length in a situation where it wasn't strictly necessarySigned-off-by: Michal Nazarewicz
Cc: "Yi Yang"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use the magic LIST_POISON* values to detect an incorrect use of list_del
on a deleted entry. This DEBUG_LIST specific warning is easier to
understand than the generic Oops message caused by LIST_POISON
dereference.Signed-off-by: Baruch Siach
Cc: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This old address bounces and Sergey doesn't answer at another email
address.Signed-off-by: Joe Perches
Cc: Sergey Kostyliov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Laurent is sending auto-replies with a new email address, so might as well
update MAINTAINERS.Signed-off-by: Joe Perches
Acked-by: Laurent Pinchart
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Subrata Modak
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Acked-by: Inaky Perez-Gonzalez
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Jim Paris
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Felipe Balbi
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Vitaly Bordug
Cc: Marcelo Tosatti
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Matthew Garrett
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Neil Horman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: David Airlie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Yoshinori Sato
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit f80a3f62383bf673c310926d55142d51f118926d ("Staging: strip: delete
the driver") removed it.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: Viresh Kumar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit d6e976c0d258c9547a308bd8a9a82ec93e2bc6e2 ("UIO: Remove SMX
Cryptengine driver") removed the file.Signed-off-by: Joe Perches
Acked-by: Ben Nizette
Acked-by: Hans J. Koch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Entered as 822 (10 key typo?).
Signed-off-by: Joe Perches
Acked-by: Maxim Levitsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit 21b4aaa14329db793832e865f15000c5c0192ac3 ("l2tp: Relocate pppol2tp
driver to new net/l2tp directory") moved the file.Signed-off-by: Joe Perches
Cc: James Chapman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Joe Perches
Cc: "John W. Linville"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
